US Bridges

Sma 7273;LATAH ST over Ridenbaugh Canal

Fair

Ada County, Idaho · In Boise;latah St. · Structure no. 000000000021421

Built
1991
34 years old
Condition
Fair
inspected October 2021
Type
Frame
Concrete
Length
32 ft
1 main span
Daily traffic
4,800
2023 count
Owner
County
County Highway Agency

About this bridge

Sma 7273;LATAH ST over Ridenbaugh Canal is a concrete frame carrying Sma 7273;LATAH ST over Ridenbaugh Canal in Ada County, Idaho. It was built in 1991, so it is 34 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,800 vehicles a day, projected to reach 7,200 by 2042. The structure is 32 ft (9.8 m) long and 60 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesSma 7273;LATAH ST
CrossesRidenbaugh Canal
LocationIn Boise;latah St.
RouteCity Street 7273
CountyAda County
StateIdaho
Coordinates43.5981, -116.2286
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103 US tons
Inventory rating61.9 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length32 ft (9.8 m)
Longest span32 ft (9.8 m)
Deck width60 ft (18.4 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,800 (2023)
Projected traffic7,200 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sma 7273;LATAH ST over Ridenbaugh Canal built?

It was built in 1991, making it 34 years old in 2025.

What condition is Sma 7273;LATAH ST over Ridenbaugh Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2021.

How much traffic does Sma 7273;LATAH ST over Ridenbaugh Canal carry?

About 4,800 vehicles per day (2023 count).

How long is Sma 7273;LATAH ST over Ridenbaugh Canal?

The structure is 32 ft (9.8 m) long with a longest span of 32 ft (9.8 m) and a deck 60 ft wide.

Who owns Sma 7273;LATAH ST over Ridenbaugh Canal?

It is owned by the County Highway Agency.